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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() 
  5.  
  6. {
  7.     int  r, L;
  8. 	float phi = 3.14;
  9.  
  10.     cin>> r;
  11.     L = phi*r*r;
  12.  
  13. 	return 0;
  14. }
Success #stdin #stdout 0.01s 5328KB
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Standard output is empty
https://ideone.com/GaRCl4
language:
C++ 4.3.2 (gcc-4.3.2)
created:
6 days ago
visibility:
public

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